Carburetor Parts Shopping Cart
Items:
(0)
Total:
$0

AFB Metering Rods & Jets


I get a lot of questions about the AFB and how the jets and metering rods are related, so here we go.

Carter AFB
Jets
The AFB, 4 barrel carburetor has 4 jets. Two matching primary and two matching secondaries. The Weber marine carburetor is an exception to this. On that carburetor the primary jets can be of different size and the two secondary jets will be a different size. The primary jets are usually a bigger size than the secondary jets. This is because the metering rods are used on the primary side of the jets, so the jets need to be bigger. This is the opposite from most 4 barrel carburetors, where the secondary jets are bigger than the primary.. The primary jets supply fuel for idle and 90% of part throttle. A two step metering rod is used to control the fuel on the primary side. The larger diameter of the rod is held in the jet at idle and low throttle when the vacuum is the strongest. As the throttle is opened and vacuum drops, the metering rod raises up and the smaller diameter is in the jet allowing more fuel to flow. AFB jets are usually stamped with the jet part number where 120- is the part number and the last 3 numbers is the jet size. 3xx is interpreted as .0xx. Replace the 3 with a 0, i.e. .088. When it is 4xx, replace the 4 with a 1, i.e. .102. When you can't read the jet you can use drill bits to measure the size. Use a go, no go to accurately nail the size down. Since the metering rods can be changed without taking the carburetor apart, they are usually the better choice when trying to adjust the lean, or rich condition. Change the metering rod one size at a time until you reach the desired results. If you don't get what you need using the last size metering rod, then you will need to consider changing the jet size. To get to an approximate size relationship between the jet and the metering rod subtract the rod diameter from the jet diameter of the last combination, then subtract that total from the new jet diameter, which will then give you a new metering rod diameter. Example: Jet is .098 and the rod is .076. .098-.076 is .022. To go leaner you select a jet size of .096. .096-.022 equals a .074 rod size. The exact area calculation would get your a .068 rod size.During part throttle operation, manifold vacuum overcomes the tension of the step-up piston spring and pulls the step-up piston and assembly down, holding the large diameter of the step-up ord in the main metering jet. Fuel then flows through the jet and around the metering rod at a reduced volume. During acceleration and under load, the tension of the spring overcomes the pull of vacuum under the piston, the step-up rod will move up so its smaller diameter, or power step is in the jet. Fuel then flows through the jet and around the metering rod at a higher volume.
AFB Jets

 
In the illustration A indicates a bleed which prevents a rich condition and bog when the high speed circuit is reinitiated after deceleration.The wrong step up piston spring or using a spring that has been stretched out of shape can eratic carburetor behavior at low and high speeds. We sell the metering springs in full sets, which allows you to experiement. For the best running conditions at both low and high speeds, use the lightest spring that you can and still get the best performance from your carburetor.
A couple of other things to look for when you aren't getting the performance you expect is a clogged air bleed or main vent tube, which would cause a rich condition. A float with an incorrect setting will also cause poor performance at higher speeds.
Buy your metering rod springs here.

AFB Metering Springs

Metering Rod & Jet Sizes

This chart includes what we know about the original size and part numbers for the Carter AFB carburetor jets and step up rod (metering rod). Keep in mind that these specifications were written when gasoline was much different than it is today. Use only as a guideline. It's all about trial & error these days. Since it now takes more gas to go the same mile, fudge to the bigger size jets and smaller size metering rods.

MAKE
YEAR
MODEL
ID
CARB NUMBER
TYPE
CFM
PRIMARY JET
SECONDARY JET
METERING ROD SIZE
FORD
1957
312" 5.1L, 352" 5.8L, 430" 7.0L
5168
2441S, 2441SA
AFB
 
.0935
.0635
 
MERCURY
1957
312
5168
2441S, 2441SA
AFB
 
.0935
.0635
 
CHRYSLER
1957-58
IMPERIAL 392”
5173
2448S, 2448SA
AFB
 
N/A
N/A
.0645X.058
CADILLAC
1957
W/O AIR
5204
2479S, 2479SA
AFB
 
.098
.082
 
CADILLAC
1959
ALL MODELS
5204
2479S, 2479SA
AFB
 
.098
.082
 
CADILLAC
1958
ALL MODELS
5204
2479S, 2479SA
AFB
 
.098
.082
 
CADILLAC
1957
ALL MODELS
5204
2479S, 2479SA
AFB
 
.098
.082
 
CADILLAC
1960
ALL MODELS
5204
2479S, 2479SA
AFB
 
.098
.082
 
CADILLAC
1958
ALL MODELS
5205
2480S, 2480SA
AFB
 
.098
.082
 
CADILLAC
1957
W AIR
5205
2480S, 2480SA
AFB
 
.098
.082
 
CADILLAC
1957
ALL MODELS
5205
2480S, 2480SA
AFB
 
.098
.082
 
CADILLAC
1960
ALL MODELS
5205
2480S, 2480SA
AFB
 
.098
.082
 
CADILLAC
1959
ALL MODELS
5205
2480S, 2480SA
AFB
 
.098
.082
 
PONTIAC
1957
HYDRAMATIC
5218
2506S, 2506SA
AFB
 
.098
.073
 
PONTIAC
1958
57-27, 57-28
5218
2506S, 2506SA
AFB
 
.098
.073
 
PONTIAC
1957
57-27, 57-28
5218
2506S, 2506SA
AFB
 
.098
.073
 
BUICK
1957
50, 60, 70
5219
2507S, 2507SA
AFB
 
.0935
.0748
 
BUICK
1957
50
5219
2507S, 2507SA
AFB
 
.0935
.0748
 
DESOTO
1958
LS2, 354" ENG (CANADA)
5325
2650S, 2650SA
AFB
 
.089
.057
.065X.060
CHRYSLER
1958
LC2
5325
2650S, 2650SA
AFB
 
.089
.057
.065X.060
CHRYSLER
1957-1958
354" 5.8L, 361" 5.9L, 383" 6.3L, 392" 6.4L, 413" 6.8L, 426" 7.0L, 440" 7.2L
5325
2650S, 2650SA
AFB
 
.089
.057
.065X.060
CHRYSLER
1957-58
IMPERIAL 392” 6.4L
5326
2651S, 2651SA
AFB
 
.089
.061
.065X.060
CHRYSLER
1958
LY1, LC3
5326
2651S, 2651SA
AFB
 
.089
.061
.065X.060
CHRYSLER
1957
C-75-2 354
5351
2686S, 2686SA
AFB
 
.089
.061
.0645 x .058
CADILLAC
1960
ALL
5356
2696S, 2696SA
AFB
 
.098
.082
 
CADILLAC
1959
ALL
5356
2696S, 2696SA
AFB
 
.098
.082
 
CADILLAC
1957
ALL
5356
2696S, 2696SA
AFB
 
.098
.082
 
CADILLAC
1958
ALL
5356
2696S, 2696SA
AFB
 
.098
.082
 
CHRYSLER
1960
383” 6.3L
5428
2795S, 2795SA
AFB
 
120-231
 
 
CHRYSLER
1959
383” 6.3L
5428
2795S, 2795SA
AFB
 
120-231
 
 
CHRYSLER
1959
MC1 383
5428
2795S, 2795SA
AFB
 
120-231
 
 
CHRYSLER
1960
383” 6.3L
5428
2795S, 2795SA
AFB
 
120-231
 
 
CHRYSLER
1959
318", 413" ENG
5430
2797S, 2797SA
AFB
 
.089
.635
.0635X.053
CHRYSLER
1960-65
318", 413" ENG
5430
2797S, 2797SA
AFB
 
.089
.635
.0635X.053
CHRYSLER
1959
413” 2 CARBS
5431
2798S, 2798SA
AFB
 
.089
.067
 
CHRYSLER
1959
413” 2 CARBS
5432
2799S, 2799SA
AFB
 
.089
.055
 
CHRYSLER
1958
392" IMPERIAL, LY1, LC3
5437
2806S, 2806SA
AFB
 
.089
.057
.065X.06
CHRYSLER
1957
392”
5437
2806S, 2806SA
AFB
 
.089
.057
.065X.06
CADILLAC
1959
ALL
5444
2814S, 2814SA
AFB
 
.098
.086
 
CADILLAC
1958
ALL
5444
2814S, 2814SA
AFB
 
.098
.086
 
CADILLAC
1960
ALL
5444
2814S, 2814SA
AFB
 
.098
.086
 
CADILLAC
1957
390, 429
5444
2814S, 2814SA
AFB
 
.098
.086
 
CADILLAC
1960
ALL
5445
2815S, 2815SA
AFB
 
.098
.086
 
CADILLAC
1959
ALL
5445
2815S, 2815SA
AFB
 
.098
.086
 
CADILLAC
1958
ALL
5445
2815S, 2815SA
AFB
 
.098
.086
 
CADILLAC
1957
ALL
5445
2815S, 2815SA
AFB
 
.098
.086
 
CADILLAC
1960
ALL
5486
2862S, 2862SA
AFB
 
.098
.082
 
CADILLAC
1959
ALL
5486
2862S, 2862SA
AFB
 
.098
.082
 
CADILLAC
1957
ALL
5486
2862S, 2862SA
AFB
 
.098
.082
 
CADILLAC
1958
ALL
5486
2862S, 2862SA
AFB
 
.098
.082
 
BUICK
1958
50, AUTO CHOKE
5501
2877S, 2877SA
AFB
 
.089
.092
.0635 x .060 x .053
BUICK
1957-60
425 2 CARBS
5501
2877S, 2877SA
AFB
 
.089
.092
.0635 x .060 x .053
DODGE TRUCK
1960-62
C9, C10, CT9, C9 CANADA 413”
5515
2906
AFB
 
.089
.089
 
DODGE TRUCK
1960
P8-C900, P8-C1000, 413" ENG
5516
2906S, 2906SA
AFB
 
.089
.089
 
PLYMOUTH
1960-62
361”
5528
2925S, 2925SA
AFB
 
.089
.060
 
CHRYSLER MARINE
1960
IMPERIAL
5530
2927S, 2927SA
AFB
600
.089
.067
.0635, .058
CHRYSLER
1959-65
383” 6.3L, 413” 6.8L, 426” 7.0L
5530
2927S, 2927SA
AFB
600
.089
.067
.0635, .058
CADILLAC
1960
ALL
5547
2951S, 2951SA
AFB
 
.098
.086
.065 x .055
CADILLAC
1958
ALL
5547
2951S, 2951SA
AFB
 
.098
.086
.065 x .055
CADILLAC
1957-66
ALL
5547
2951S, 2951SA
AFB
 
.098
.086
.065 x .055
CADILLAC
1957
ALL
5547
2951S, 2951SA
AFB
 
.098
.086
.065 x .055
CADILLAC
1959
ALL
5547
2951S, 2951SA
AFB
 
.098
.086
.065 x .055
PLYMOUTH
1960
361” 5.9L
5563
2969S, 2969SA
AFB
 
.089
.067
 
PLYMOUTH
1962
361” 5.9L
5563
2969S, 2969SA
AFB
 
.089
.067
 
PLYMOUTH
1961
361” 5.9L
5563
2969S, 2969SA
AFB
 
.089
.067
 
PLYMOUTH
1961
361” 5.9L
5565
2970S, 2970SA
AFB
 
.089
.067
 
PLYMOUTH
1962
361” 5.9L
5565
2970S, 2970SA
AFB
 
.089
.067
 
PLYMOUTH
1960
361” 5.9L
5565
2970S, 2970SA
AFB
 
.089
.067
 
PLYMOUTH
1962
CANADA 313” 5.1L
5579
2991S, 2991SA
AFB
 
.089
.067
 
PLYMOUTH
1961
CANADA 313” 5.1L
5579
2991S, 2991SA
AFB
 
.089
.067
 
PLYMOUTH
1960
CANADA 313” 5.1L
5579
2991S, 2991SA
AFB
 
.089
.067
 
DODGE
1960
318" 5.2L
5579
2991S, 2991SA
AFB
 
.089
.067
 
PLYMOUTH
1961
318" 5.2L
5637
3103S, 3103SA
AFB
 
.089
.057
 
DODGE
1961
DART RP4
5637
3103S, 3103SA
AFB
 
.089
.057
 
PLYMOUTH
1962
318" 5.2L
5637
3103S, 3103SA
AFB
 
.089
.057
 
PLYMOUTH
1961
361” 5.9L
5641
3105S, 3105SA
AFB
 
.089
.065
 
PLYMOUTH
1962
361” 5.9L
5641
3105S, 3105SA
AFB
 
.089
.065
 
PLYMOUTH
1960
361” 5.9L
5641
3105S, 3105SA
AFB
 
.089
.065
 
PLYMOUTH
1961
361” 5.9L
5644
3106S, 3106SA
AFB
 
.089
.064
 
PLYMOUTH
1960
361” 5.9L
5644
3106S, 3106SA
AFB
 
.089
.064
 
PLYMOUTH
1962
361” 5.9L
5644
3106S, 3106SA
AFB
 
.089
.064
 
CHRYSLER
1961
383” 6.3L, 413” 6.8L, 426” 7.0L
5650
3108S, 3108SA
AFB
 
.089
.065
 
CHRYSLER
1962
383” 6.3L, 413” 6.8L, 426” 7.0L
5650
3108S, 3108SA
AFB
 
.089
.065
 
CHRYSLER
1963
383” 6.3L, 413” 6.8L, 426” 7.0L
5650
3108S, 3108SA
AFB
 
.089
.065
 
CHRYSLER
1964
383” 6.3L, 413” 6.8L, 426” 7.0L
5650
3108S, 3108SA
AFB
 
.089
.065
 
CHRYSLER
1965
383” 6.3L, 413” 6.8L, 426” 7.0L
5650
3108S, 3108SA
AFB
 
.089
.065
 
CHRYSLER
1960
383” 6.3L, 413” 6.8L, 426” 7.0L
5650
3108S, 3108SA
AFB
 
.089
.065
 
CHRYSLER
1959
383” 6.3L, 413” 6.8L, 426” 7.0L
5650
3108S, 3108SA
AFB
 
.089
.065
 
PONTIAC
1961
389” 6.4L
5703
3123S, 3123SA
AFB
 
.0935
.0785
 
PONTIAC
1961
389” 6.4L A/T 26, 27, 28
5705
3124S, 3124SA, 3124SB
AFB
 
.0935
.076
 
PONTIAC
1961
389” 6.4L
5707
3125S, 3125SA, 3125SB
AFB
 
.0935
.076
 
PLYMOUTH
1961
313" 5.1L, 318" 5.2L, 360", 361" 5.9L, 383" 6.3L, 413" 6.8L, 426" 7.0L
5720
3131S, 3131SA
AFB
 
.089
.057
 
DODGE
1961
273" 4.5L, 313" 5.1L, 318" 5.2L, 350" 5.7L, 354" 5.8L, 360", 361" 5.9L, 383" 6.3L, 413" 6.8L, 426" 7.0L (INC HI PERF)
5720
3131S, 3131SA
AFB
 
.089
.057
 
PLYMOUTH
1961
POLICE SPECIAL 383”
5736
3133S, 3133SA
AFB
 
.089
.065
 
PLYMOUTH
1962
POLICE SPECIAL 383”
5736
3133S, 3133SA
AFB
 
.089
.065
 
DODGE
1961
8 CYL. 383" 6.3L RD-1, RD-4 W/CCV
5736
3133S, 3133SA
AFB
 
.089
.065
 
PLYMOUTH
1963
POLICE SPECIAL 383”
5736
3133S, 3133SA
AFB
 
.089
.065
 
CHRYSLER
1965
383” 6.3L, 413” 6.8L, 426” 7.0L
5740
3134S, 3134SA
AFB
 
.089
.065
 
CHRYSLER
1964
383” 6.3L, 413” 6.8L, 426” 7.0L
5740
3134S, 3134SA
AFB
 
.089
.065
 
CHRYSLER
1963
383” 6.3L, 413” 6.8L, 426” 7.0L
5740
3134S, 3134SA
AFB
 
.089
.065
 
CHRYSLER
1962
383” 6.3L, 413” 6.8L, 426” 7.0L
5740
3134S, 3134SA
AFB
 
.089
.065
 
CHRYSLER
1961
383” 6.3L, 413” 6.8L, 426” 7.0L
5740
3134S, 3134SA
AFB
 
.089
.065
 
CHRYSLER
1960
383” 6.3L, 413” 6.8L, 426” 7.0L
5740
3134S, 3134SA
AFB
 
.089
.065
 
CHRYSLER
1959
383” 6.3L, 413” 6.8L, 426” 7.0L
5740
3134S, 3134SA
AFB
 
.089
.065
 
PLYMOUTH
1961
361” 5.9L
5766
3140S, 3140SA
AFB
 
.089
.065
 
PLYMOUTH
1962
361” 5.9L
5766
3140S, 3140SA
AFB
 
.089
.065
 
PLYMOUTH
1960
361” 5.9L
5766
3140S, 3140SA
AFB
 
.089
.065
 
DODGE
1961
383" 6.3L
5790
3152S, 3152SA
AFB
 
.089
.067
 
PLYMOUTH
1961
383" 6.3L
5790
3152S, 3152SA
AFB
 
.089
.067
 
DESOTO
1961
383" 6.3L
5790
3152S, 3152SA
AFB
 
.089
.067
 
DODGE
1962
DART SD2
5947
3247S, 3247SA
AFB
 
.089
.057
 
PLYMOUTH
1962
313" 5.1L, 318" 5.2L, 360", 361" 5.9L, 383" 6.3L, 413" 6.8L, 426" 7.0L
5947
3247S, 3247SA
AFB
 
.089
.057
 
PLYMOUTH
1962
313" 5.1L, 318" 5.2L, 360", 361" 5.9L, 383" 6.3L, 413" 6.8L, 426" 7.0L
5951
3249S, 3249SA
AFB
 
.089
.057
 
DODGE
1962
DART SD2 W CRANKCASE VENT
5951
3249S, 3249SA
AFB
 
.089
.057
 
CHRYSLER
1965
383”, 413”, 426”
5956
3251S, 3251SA
AFB
 
.089
.065
 
CHRYSLER
1959
383”, 413”, 426”
5956
3251S, 3251SA
AFB
 
.089
.065
 
CHRYSLER
1960
383”, 413”, 426”
5956
3251S, 3251SA
AFB
 
.089
.065
 
CHRYSLER
1961
383”, 413”, 426”
5956
3251S, 3251SA
AFB
 
.089
.065
 
CHRYSLER
1962
383”, 413”, 426”
5956
3251S, 3251SA
AFB
 
.089
.065
 
CHRYSLER
1964
383”, 413”, 426”
5956
3251S, 3251SA
AFB
 
.089
.065
 
CHRYSLER
1963
383”, 413”, 426”
5956
3251S, 3251SA
AFB
 
.089
.065
 
PLYMOUTH
1960
361” 5.9L
5957
3252S, 3252SA
AFB
 
.089
.065
 
PLYMOUTH
1961
361” 5.9L
5957
3252S, 3252SA
AFB
 
.089
.065
 
PLYMOUTH
1962
361” 5.9L
5957
3252S, 3252SA
AFB
 
.089
.065
 
DODGE
1962
361" A/T High performance 8CYL.
5958
3253S, 3253SA
AFB
 
.089
.064
 
PLYMOUTH
1961
361” 5.9L
5958
3253S, 3253SA
AFB
 
.089
.064
 
PLYMOUTH
1962
361” 5.9L
5958
3253S, 3253SA
AFB
 
.089
.064
 
PLYMOUTH
1960
361” 5.9L
5958
3253S, 3253SA
AFB
 
.089
.064
 
CHRYSLER
1961
383”, 413”, 426”
5963
3256S, 3256SA
AFB
 
.089
.065
 
CHRYSLER
1965
383”, 413”, 426”
5963
3256S, 3256SA
AFB
 
.089
.065
 
CHRYSLER
1963
383”, 413”, 426”
5963
3256S, 3256SA
AFB
 
.089
.065
 
CHRYSLER
1962
383”, 413”, 426”
5963
3256S, 3256SA
AFB
 
.089
.065
 
DODGE
1961
383" 6.3L
5963
3256S, 3256SA
AFB
 
.089
.065
 
CHRYSLER
1959
383”, 413”, 426”
5963
3256S, 3256SA
AFB
 
.089
.065
 
CHRYSLER
1964
383”, 413”, 426”
5963
3256S, 3256SA
AFB
 
.089
.065
 
CHRYSLER
1960
383”, 413”, 426”
5963
3256S, 3256SA
AFB
 
.089
.065
 
PLYMOUTH
1960
361” 5.9L
5965
3257S, 3257SA
AFB
 
.089
.065
 
DODGE
1962
273" 4.5L, 313" 5.1L, 318" 5.2L, 350" 5.7L, 354" 5.8L, 360", 361" 5.9L, 383" 6.3L, 413" 6.8L, 426" 7.0L (INC HI PERF)
5965
3257S, 3257SA
AFB
 
.089
.065
 
CHRYSLER
1963
HP 383” 2 CARBS
5968
3258S, 3258SA
AFB
 
.089
.067
 
CHRYSLER
1962
413” 2 CARBS
5968
3258S, 3258SA
AFB
 
.089
.067
 
CHRYSLER
1962
413” 2 CARBS
5970
3259S, 3259SA
AFB
 
.089
.055
 
CHRYSLER
1963
HP 383” 2 CARBS
5970
3259S, 3259SA
AFB
 
.089
.055
 
PONTIAC
1962
389” 6.4L
6047
3300S, 3300SA
AFB
 
.0935
.0785
 
PONTIAC
1962
389” 6.4L A/T
6111
3326S, 3326SA
AFB
 
.0935
.0785
 
PONTIAC
1962
389” 6.4L
6244
3479S, 3479SA
AFB
 
.0935
.076
 
PONTIAC
1963
389” 6.4L
6244
3479S, 3479SA
AFB
 
.0935
.076
 
PONTIAC
1964
389” 6.4L
6244
3479S, 3479SA
AFB
 
.0935
.076
 
PONTIAC
1965
389” 6.4L
6244
3479S, 3479SA
AFB
 
.0935
.076
 
PONTIAC
1961
389” 6.4L
6244
3479S, 3479SA
AFB
 
.0935
.076
 
DODGE TRUCK
1965
413"
6250
3481S, 3481SA
AFB
 
.098
.082
 
CADILLAC
1961
390” 6.4L
6250
3481S, 3481SA
AFB
 
.098
.082
 
DODGE TRUCK
1965
413"
6250
3481S, 3481SA
AFB
 
.098
.082
 
PONTIAC
1963
421” 6.9L AT
6299
3545S, 3545SA
AFB
 
.091
.081
 
PONTIAC
1963
421” 6.9L MT
6311
3574S, 3574SA
AFB
 
.0935
.076
 
PONTIAC
1964
389” 6.4L MT
6361
3647S, 3647SA
AFB
 
.086
.081
 
PONTIAC
1964
389” 6.4L AT
6362
3648S. 3648SA
AFB
 
.0935
.086
 
PONTIAC
1964
GTO 389" 6.4L AT
6363
3649S, 3649SA
AFB
 
.0935
.086
 
PONTIAC
1964
421" 6.9L MT
6367
3650S, 3650SA
AFB
 
.0935
.081
 
PONTIAC
1964
421" 6.9L AT
6368
3651S, 3651SA
AFB
 
.091
.086
 
CHEVROLET
1964
HP CORVETTE 327”
6421
3720S, 3720SA
AFB
 
.104
.0635
 
CHEVROLET
1965
HP CORVETTE 327”
6421
3720S, 3720SA
AFB
 
.104
.0635
 
CHRYSLER
1965
383”, 413”, 426”
6818
3855S, 3855SA
AFB
 
.089
 
 
DODGE
1965
383" 6.3L
6818
3855S, 3855SA
AFB
 
.089
 
 
PLYMOUTH
1965
383”, 413”, 426”
6818
3855S, 3855SA
AFB
 
.089
 
 
PONTIAC
1961
389” 6.4L
6840
3895S, 3895SA
AFB
 
.091
.0785
 
PONTIAC
1963
389” 6.4L
6840
3895S, 3895SA
AFB
 
.091
.0785
 
PONTIAC
1965
421” 6.9L ST
6840
3895S, 3895SA
AFB
 
.091
.0785
 
DODGE TRUCK
1968
413"
6840
3895S, 3895SA
AFB
 
.091
.0785
 
PONTIAC
1964
389” 6.4L
6840
3895S, 3895SA
AFB
 
.091
.0785
 
DODGE TRUCK
1968
413"
6840
3895S, 3895SA
AFB
 
.091
.0785
 
PONTIAC
1965
389” 6.4L AT
6842
3896S, 3896SA
AFB
 
.091
.0785
 
PONTIAC
1965
421” 6.9L
6843
3898S, 3898SA
AFB
 
.091
.086
 
PONTIAC
1965
TEMPEST 326" 5.3L MT
6844
3899S, 3899SA
AFB
 
.0935
.086
 
PONTIAC
1965
TEMPEST 326" 5.3L AT
6847
3900S, 3900SA
AFB
 
.0935
.086
 
CADILLAC
1964
429” 7.0L
6851
3904S, 3904SA
AFB
0
.098
.082
.072 x .062
CHRYSLER
1965
383” 6.3L
6851
3904S, 3904SA
AFB
0
.098
.082
.072 x .062
CADILLAC
1966
429” 7.0L
6851
3904S, 3904SA
AFB
0
.098
.082
.072 x .062
CADILLAC
1966
429” 7.0L
6851
3904S, 3904SA
AFB
0
.098
.082
.072 x .062
CHRYSLER
1965
383” 6.3L
6851
3904S, 3904SA
AFB
0
.098
.082
.072 x .062
PONTIAC
1966
326" 5.3L, 389" 6.4L, 400" 6.6L, 421" 6.9L
6958
4030S, 4030SA
AFB
 
.0935
.0785
 
PONTIAC
1966
CALIF 326 AT
6959
4031S, 4031SA
AFB
 
.094
.079
 
PONTIAC
1966
389, 421 MT EXCEPT AIR
6961
4033S, 4033SA
AFB
 
.094
.079
 
PONTIAC
1966
326" 5.3L, 389" 6.4L, 400" 6.6L, 421" 6.9L
6963
4034S, 4034SA
AFB
 
.094
.079
 
PONTIAC
1961-66
326, 370, 389, 421
6964
4035S, 4035SA
AFB
 
.094
.082
 
PONTIAC
1966
326" 5.3L, 389" 6.4L, 400" 6.6L, 421" 6.9L
6964
4035S, 4035SA
AFB
 
.094
.082
 
PONTIAC
1966
TEMPEST 326" 5.3L AT
6965
4036S, 4036SA
AFB
 
.094
.085
 
PONTIAC
1966
326" 5.3L, 389" 6.4L, 400" 6.6L, 421" 6.9L
6966
4037S, 4037SA
AFB
 
.094
.081
 
PONTIAC
1966
389, 421”
6970
4041S, 4041SA
AFB
 
.094
.079
 
BUICK
1966
340”
6994
4061S, 4061SA
AFB
 
.063
.075
 
DODGE
1965-67
DART 273”
7043
4119S, 4119SA
AFB
 
.089
.073
 
DODGE
1966
DART W/O C.A.P. 273” AT
7045
4120S, 4120SA
AFB
 
.089
 
 
DODGE
1967
DART W/O C.A.P. 273” AT
7045
4120S, 4120SA
AFB
 
.089
 
 
DODGE
1965-67
DART 273”
7047
4121S, 4121SA
AFB
 
.089
.073
 
DODGE
1965-67
DART 273”
7049
4122S, 4122SA
AFB
 
.089
.073
 
CHRYSLER
1967
W/O C.A.P. 383”
7062
4130S, 4130SA
AFB
 
.089
.0689
 
DODGE
1966
B ENGINES 273" 4.5L, 313" 5.1L, 318" 5.2L, 350" 5.7L, 354" 5.8L, 360", 361" 5.9L, 383" 6.3L, 413" 6.8L, 426" 7.0L INC HI PERF
7062
4130S, 4130SA
AFB
 
.089
.0689
 
CHRYSLER
1966
W/O C.A.P. 383”
7062
4130S, 4130SA
AFB
 
.089
.0689
 
DODGE
1966
B ENGINES 273" 4.5L, 313" 5.1L, 318" 5.2L, 350" 5.7L, 354" 5.8L, 360", 361" 5.9L, 383" 6.3L, 413" 6.8L, 426" 7.0L INC HI PERF
7063
4131S, 4131SA
AFB
 
.089
.0689
 
CHRYSLER
1966
W/O C.A.P. 440”
7063
4131S, 4131SA
AFB
 
.089
.0689
 
DODGE
1966
8 383 California
7064
4132S, 4132SA
AFB
 
.089
 
 
CHRYSLER
1966-67
383” ST
7064
4132S, 4132SA
AFB
 
.089
 
 
DODGE
1966
383" 6.3L A/T
7065
4133S, 4133SA
AFB
 
.089
.082
 
CHRYSLER
1966
383” AT
7065
4133S, 4133SA
AFB
 
.089
.082
 
CHRYSLER
1967
383” AT
7065
4133S, 4133SA
AFB
 
.089
.082
 
CHRYSLER
1966-67
440”
7066
4136S, 4136SA
AFB
 
.089
.082
 
DODGE
1966
8 426 California
7066
4136S, 4136SA
AFB
 
.089
.082
 
CHRYSLER
1966-67
440”
7067
4137S, 4137SA
AFB
 
.089
.082
 
DODGE
1966
1966 8 426 California
7067
4137S, 4137SA
AFB
 
.089
.082
 
Fate Root
 
Silver King
7067
4137S, 4137SA
AFB
 
.089
.082
 
DODGE
1967
(Front of 2)
7069
4139S, 4139SA
AFB
 
.089
.1065 PUMP
 
DODGE
1966
426 HEMI (Front of 2)
7069
4139S, 4139SA
AFB
 
.089
.1065 PUMP
 
PLYMOUTH
1967
DUAL 426"
7069
4139S, 4139SA
AFB
 
.089
.1065 PUMP
 
PLYMOUTH
1966
DUAL 426"
7069
4139S, 4139SA
AFB
 
.089
.1065 PUMP
 
CHRYSLER
1966
W/O C.A.P. 426” DUAL CARB
7069
4139S, 4139SA
AFB
 
.089
.1065 PUMP
 
BUICK
1966
300" 4.9L, 340" 5.6L, 400", 401" 6.6L, 425" 7.0L
7102
4179S, 4179SA
AFB
 
.062
.075
 
CHRYSLER
1965
383” 6.3L, 413” 6.8L
7117
4200S, 4200SA
AFB
 
.089
.068
 
CHRYSLER
1960
383” 6.3L, 413” 6.8L
7117
4200S, 4200SA
AFB
 
.089
.068
 
CHRYSLER
1961
383” 6.3L, 413” 6.8L
7117
4200S, 4200SA
AFB
 
.089
.068
 
CHRYSLER
1962
383” 6.3L, 413” 6.8L
7117
4200S, 4200SA
AFB
 
.089
.068
 
CHRYSLER
1963
383” 6.3L, 413” 6.8L
7117
4200S, 4200SA
AFB
 
.089
.068
 
CHRYSLER
1959
383” 6.3L, 413” 6.8L POLICE SPECIAL
7117
4200S, 4200SA
AFB
 
.089
.068
 
CHRYSLER
1964
383” 6.3L, 413” 6.8L
7117
4200S, 4200SA
AFB
 
.089
.068
 
LINCOLN
 
430
7120
4204S, 4204SA
AFB
 
.095
.081
 
LINCOLN
1959
430
7120
4204S, 4204SA
AFB
 
.095
.081
 
LINCOLN
1959-67
430
7121
4205S, 4205SA
AFB
 
.095
.081
 
LINCOLN
1959
430
7121
4205S, 4205SA
AFB
 
.095
.081
 
LINCOLN
1959
430
7121
4205S, 4205SA
AFB
 
.095
.081
 
PONTIAC
1966
326" 389”, 400”, 421”
7135
4242S, 4242SA
AFB
 
.092
.080
 
PONTIAC
1967
389”, 400”, 421”
7135
4242S, 4242SA
AFB
 
.092
.080
 
PONTIAC
1966
326" 389”, 400”, 421”
7137
4243S, 4243SA
AFB
 
.092
.080
 
PONTIAC
1967
326", 389”, 400”, 421”
7137
4243S, 4243SA
AFB
 
.092
.080
 
PONTIAC
1967
326" 389”, 400”, 421”
7138
4244S, 4244SA
AFB
 
.092
.077
 
PONTIAC
1966
326" 389”, 400”, 421”
7140
4245S, 4245SA
AFB
 
.092
.080
 
PONTIAC
1967
326" 389”, 400”, 421”
7140
4245S, 4245SA
AFB
 
.092
.080
 
PONTIAC
1967
326" 389”, 400”, 421”
7143
4248S, 4248SA
AFB
 
.092
.083
 
PLYMOUTH
1967
BARRACUDA W/O C.A.P. 273” AT
7180
4295S, 4295SA
AFB
 
.089
.074 pump
 
DODGE
1967
DART W/O C.A.P. 273” AT
7180
4295S, 4295SA
AFB
 
.089
.074 pump
 
DODGE
1966
DART W/O C.A.P. 273” AT
7180
4295S, 4295SA
AFB
 
.089
.074 pump
 
CHRYSLER
1966
W/O C.A.P. 383”
7183
4298S, 4298SA
AFB
 
.089
.068
 
DODGE
1967
383" S/T 8CYL.
7183
4298S, 4298SA
AFB
 
.089
.068
 
CHRYSLER
1967
W/O C.A.P. 383”
7183
4298S, 4298SA
AFB
 
.089
.068
 
DODGE
1967
383" A/T 8CYL.
7184
4299S, 4299SA
AFB
 
.089
.068
 
DODGE
1966
383" A/T 8CYL.
7184
4299S, 4299SA
AFB
 
.089
.068
 
CHRYSLER
1966
W/O C.A.P. 383”
7184
4299S, 4299SA
AFB
 
.089
.068
 
CHRYSLER
1967
383” AT
7203
4318S, 4318SA
AFB
 
.089
.082
 
CHRYSLER
1966
383” AT
7203
4318S, 4318SA
AFB
 
.089
.082
 
DODGE
1967
8 Police special (Calif)
7203
4318S, 4318SA
AFB
 
.089
.082
 
CHRYSLER
1967
HP 440”
7208
4326S, 4326SA
AFB
 
.098
.080 PU,MP
 
DODGE
1967
8 440 S/T (A-134)
7208
4326S, 4326SA
AFB
 
.098
.080 PU,MP
 
DODGE
1967
8 440 A/T (A-134)
7209
4327S, 4327SA
AFB
 
.098
.080 PUMP
 
CHRYSLER
1967
HP 440”
7209
4327S, 4327SA
AFB
 
.098
.080 PUMP
 
BUICK
1967
340”
7213
4331S, 4331SA
AFB
 
.092
.070
 
BUICK
1961-67
425
7213
4331S, 4331SA
AFB
 
.092
.070
 
BUICK
1966
340”
7213
4331S, 4331SA
AFB
 
.092
.070
 
BUICK
1961-67
300, 340, 400
7213
4331S, 4331SA
AFB
 
.092
.070
 
DODGE
1967
8 CYL. 426" (Rear of 2)
7223
4343S, 4343SA
AFB
 
.089
.080 PUMP,
 
DODGE
1966
8 CYL. 426" (Rear of 2)
7223
4343S, 4343SA
AFB
 
.089
.080 PUMP,
 
DODGE
1967
8 426 Hemi (Drag-Strip)(2)
7226
4345
AFB
 
.089
.077 PUMP,
 
LINCOLN
1959-67
430
7239
4360S, 4360SA
AFB
 
.095
.081
 
LINCOLN
1959-67
430
7240
4361S, 4361SA
AFB
 
.095
.081
 
LINCOLN
1967
400
7242
4363S, 4363SA
AFB
 
.095
.081
 
LINCOLN
1959-67
430
7242
4363S, 4363SA
AFB
 
.095
.081
 
DODGE TRUCK
1960-62
C9, C10, CT9, C9 CANADA 413”
7262
4393S, 4393SA
AFB
 
.089
.089
 
DODGE TRUCK
1964
413"
7262
4393S, 4393SA
AFB
 
.089
.089
 
CADILLAC
1966
429” 7.0L
7262
4393S, 4393SA
AFB
 
.089
.089
 
DODGE TRUCK
1964
413"
7262
4393S, 4393SA
AFB
 
.089
.089
 
DODGE TRUCK
1963-68
413"
7262
4393S, 4393SA
AFB
 
.089
.089
 
CADILLAC
1966
429” 7.0L
7262
4393S, 4393SA
AFB
 
.089
.089
 
DODGE TRUCK
1963-68
413"
7262
4393S, 4393SA
AFB
 
.089
.089
 
PONTIAC
1967
326", 400
7274
4413S, 4413SA
AFB
 
.092
.080
 
PONTIAC
1967
326”, 400”
7274
4413S, 4413SA
AFB
 
.092
.080
 
LINCOLN
1968
462
7393
4562S
AFB
 
.095
.081
 
DODGE
1970
D, W 383 AT
7522
4732S, 4732SA
AVS
 
.089
.098
 
CHRYSLER
1970
340”, 383”
7522
4732S, 4732SA
AVS
 
.089
.098
 
DODGE
1970
383 E.C.S.
7523
4734S, 4734SA
AVS
 
.089
.098
 
CHRYSLER
1970
340”, 383”
7523
4734S, 4734SA
AVS
 
.089
.098
 
CHRYSLER
1970
340”, 383”
7524
4736S, 4736SA
AVS
 
.089
.098
 
DODGE
1970
8 383 A/T
7524
4736S, 4736SA
AVS
 
.089
.098
 
DODGE
1970
8 440 S/T
7525
4737S, 4737SA
AVS
 
.101
.095
 
CHRYSLER
1970
440” W/ST
7525
4737S, 4737SA
AVS
 
.101
.095
 
CHRYSLER
1971
440"
7528
4738S, 4738SA
AVS
 
.101
.095
 
CHRYSLER
1970
440” W/ST
7528
4738S, 4738SA
AVS
 
.101
.095
 
DODGE
1970
8 440 A/T
7528
4738S, 4738SA
AVS
 
.101
.095
 
DODGE
1970
8 440 S/T ECS
7529
4739S, 4739SA
AVS
 
.101
.095
 
CHRYSLER
1970
440” W/ST
7529
4739S, 4739SA
AVS
 
.101
.095
 
CHRYSLER
1970
440" W/STD TRANS
7530
4740S, 4740SA
AVS
 
.101
.095
 
DODGE
1970
8 440 A/T ECS
7530
4740S, 4740SA
AVS
 
.101
.095
 
CHRYSLER
1971
440”
7530
4740S, 4740SA
AVS
 
.101
.095
 
CHRYSLER
1970
440" W/STD TRANS
7531
4741S, 4741SA
AVS
 
.101
.095
 
DODGE
1970
8 440 A/T A.C.
7531
4741S, 4741SA
AVS
 
.101
.095
 
CHRYSLER
1971
440”
7531
4741S, 4741SA
AVS
 
.101
.095
 
DODGE
1971
DART HIGH PERF 2 CARBS 426”
7532
4742S, 4742SA
AFB
 
.089
.089
 
DODGE
1970
DART HIGH PERF 2 CARBS 426”
7532
4742S, 4742SA
AFB
 
.089
.089
 
DODGE
1971
DART HIGH PERF 2 CARBS 426”
7534
4745S, 4745SA
AFB
 
.089
.089
 
DODGE
1970
DART HIGH PERF 2 CARBS 426”
7534
4745S, 4745SA
AFB
 
.089
.089
 
DODGE
1971
B, J, R, 426" HEMI
7537
4746S, 4746SA
AFB
 
.089
.092 PUMP,
 
UNIVERSAL
 
COMPETITION 500 CFM
7545
4758S, 4758SA
AFB
 
.086
.095
 
CHRYSLER
1970
340”, 383”
7652
4933S, 4933SA
AVS
 
.101
.095
 
DODGE
1970
8 340 S/T
7652
4933S, 4933SA
AVS
 
.101
.095
 
DODGE
1970
8 340 A/T
7653
4934S, 4934SA
AVS
 
.101
.098
 
CHRYSLER
1970
340”, 383”
7653
4934S, 4934SA
AVS
 
.101
.098
 
DODGE
1970
8 340 A/T A.C.
7654
4935S, 4935SA
AVS
 
.101
.098
 
CHRYSLER
1970
340”, 383”
7654
4935S, 4935SA
AVS
 
.101
.098
 
CHRYSLER
1970
340”, 383”
7655
4936S, 4936SA
AVS
 
.101
.095
 
DODGE
1970
8 340 S/T ECS
7655
4936S, 4936SA
AVS
 
.101
.095
 
DODGE
1970
8 340 A/T ECS
7656
4937S, 4937SA
AVS
 
.101
.098
 
CHRYSLER
1970
340”, 383”
7656
4937S, 4937SA
AVS
 
.101
.098
 
CHRYSLER
1971
440”
7676
4967S, 4967SA
AVS
 
.101
.089
 
CHRYSLER
1971
440”
7677
4968S, 4968SA
AVS
 
.101
.095
 
DODGE
1970
DART HIGH PERF 2 CARBS 426”
7678
4969S, 4969SA
AFB
 
.089
.092 PUMP,
 
DODGE
1971
DART HIGH PERF 2 CARBS 426”
7678
4969S, 4969SA
AFB
 
.089
.092 PUMP,
 
DODGE
1971
426" HEMI REAR CARB
7680
4970S, 4970SA
AFB
 
.089
.092 PUMP
 
DODGE
1970
8 CYL 426" (Front of 2)
7681
4971S, 4971SA
AFB
 
.089
.089
 
DODGE
1971
426" HEMI FRONT CARB
7681
4971S, 4971SA
AFB
 
.089
.089
 
CARTER UNIVERSAL
 
600 CFM
12075
9605S, 9605SA
AFB
 
.098
.095
 
CARTER UNIVERSAL
 
600 CFM
12076
9606S, 9606SA
AFB
 
.098
.095
 
CARTER UNIVERSAL
 
600 CFM
12077
9607S, 9607SA
AFB
 
.098
.095
 
UNIVERSAL
 
625 CFM
12086
9625S
AFB
 
.098
.095
 
CHEVROLET
 
625 CFB CHEVY LINKAGE
12092
9635S, 9635SA
AFB
 
.098
.095
 
UNIVERSAL
 
625 CFM
12093
9636S
AFB
 
.098
.095
 
FORD
 
625 CFM UNIVERSAL
12094
9637S, 9637SA
AFB
 
.098
.095
70x47
UNIVERSAL
 
625 CFM
12095
9638S, 9638SA
AFB
 
.098
 
 
CARTER UNIVERSAL
 
750 CFM
12135
9755S, 9755SA
AFB
 
.113
.107
 
CARTER UNIVERSAL
 
750 CFM
12136
9756S, 9756SA
AFB
 
.113
.107
 
CARTER UNIVERSAL
 
750 CFM
12137
9757S, 9757SA
AFB
 
.113
.107
 
CHRYSLER
1971
383 800 CFM
12160
9801S, 9801SA
AFB
 
120-4095
120-5125
 
LINCOLN
1959-67
430
13130
C3VE-A
AFB
 
CJ127
 
 
LINCOLN
1967
462 THERMACTOR
13820
C7VF-B
AFB
 
CJ127
 
 
LINCOLN
1967
462
13822
C7VF-D
AFB
 
CJ127
 
 

Removing Frozen Jets
Put a screw driver on the jet and hit it a few times with a hammer.
Heat the outside of the carburetor where the jet is. That might help.

Lastly
Drill the jet out.
Start with a small bit working your way up to just shy of the actual jet size. Usually if you are careful the jet will wrap around the drill and come out without damaging the threads.

Jets are 5/16" so use a bit just shy of 5/16" for the final drill.

If you damage the threads you will have to tap it 5/16" x 24
Can't find what you need? Contact Us
Rochester 2 Barrel Carburetor Brass Float
Average Rating(89)
$11.95
[availability]
Carter AFB Edelbrock Brass Float
Average Rating(33)
$7.95
[availability]
Mercarb Carburetor Kit
Average Rating(144)
$43.95
[availability]